1375331587 has 8 divisors (see below), whose sum is σ = 1654534400. Its totient is φ = 1116810504.

The previous prime is 1375331567. The next prime is 1375331591. The reversal of 1375331587 is 7851335731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375331587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375331527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5170287 + ... + 5170552.

It is an arithmetic number, because the mean of its divisors is an integer number (206816800).

Almost surely, 2^1375331587 is an apocalyptic number.

1375331587 is a deficient number, since it is larger than the sum of its proper divisors (279202813).

1375331587 is a wasteful number, since it uses less digits than its factorization.

1375331587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10340865.

The product of its digits is 264600, while the sum is 43.

The square root of 1375331587 is about 37085.4632841495. The cubic root of 1375331587 is about 1112.0794251168.

The spelling of 1375331587 in words is "one billion, three hundred seventy-five million, three hundred thirty-one thousand, five hundred eighty-seven".